A 95% confidence interval infers that the population mean
A) is between 0 and 100%
B) is within ± 1.96 standard deviations of the sample mean
C) is within ± 1.96 standard errors of the sample mean
D) is within ± 1.645 standard deviations of the sample mean
E) is too large

Question

Quizplus · Accepted Answer

A 95% confidence interval means that the population mean is within ± 1.96 standard errors of the sample mean, not standard deviations.

A 95% Confidence Interval Infers That the Population Mean